Hi, everybody I meet a problem. I write a COM DLL using in the web server. This dll uses some functions in openssl. When I use this dll in a VB program, it works fine. But when I put it in the web server's compnet service, and while the clients connet to the server, an asp will create a object of the dll. If lots of clients connet to the server at the same time, there are exceptions produced. Most of the exceptions are c0000005 ACCESS VIOLATION. I use Windgb to debug the dllhost.exe and find that the exception are almost the same. The exception produced at OpenSSL_add_all_algorithms(). I search the web and find that somebody said OpenSSL_add_all_algorithms() and EVP_cleanup() are not thread-safey. And the coder should protect the table which OpenSSL_add_all_algorithms() created. I don't know if it is true. But I think the exceptions I met were produced by the resource competition because if I use one thread to call the dll for a very long times, it works fine. I use some functions from <Network Security with Openssl> to protect the program, but it doesn't work and the exceptions are like before.
Could anybody give some advices on solving the problem? I am not familiar with muitithread program. ______________________________________________________________________ OpenSSL Project http://www.openssl.org Development Mailing List [email protected] Automated List Manager [EMAIL PROTECTED]
